This title appears in the Scientific Report :
2013
Please use the identifier:
http://hdl.handle.net/2128/5045 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.110.108303 in citations.
Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases
Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases
We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not glassy as heavily promoted in the literature. The po...
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Personal Name(s): | Krutyeva, Margarita (Corresponding author) |
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Wischnewski, Andreas / Monkenbusch, Michael / Willner, Lutz / Maiz, J. / Mijangos, C. / Arbe, A. / Colmenero, J. / Radulescu, Aurel / Holderer, Olaf / Ohl, Michael / Richter, Dieter | |
Contributing Institute: |
Neutronenstreuung; JCNS-1 JCNS-SNS; JCNS-SNS JCNS-FRM-II; JCNS-FRM-II Neutronenstreuung; ICS-1 |
Published in: | Physical review letters, 110 S. 108303 |
Imprint: |
College Park, Md.
APS
2013
|
DOI: |
10.1103/PhysRevLett.110.108303 |
Document Type: |
Journal Article |
Research Program: |
Soft Matter Composites |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.110.108303 in citations.
We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not glassy as heavily promoted in the literature. The polymer dynamics in confinement is, rather, determined by two phases, one fully equal to the bulk polymer and another that is partly anchored at the surface. By strong topological interaction, this phase confines further chains with no direct contact to the surface. These form the often invoked interphase, where the full chain relaxation is impeded through the interaction with the anchored chains. |